Last minute preparation on MCQS 9701 and 9702. Discussion here.

[The Sarcastic Retard]

Q18 please.
http://papers.gceguide.com/A Levels/Physics (9702)/9702_s15_qp_12.pdf

Input power = 500 * 9.81 * 300 / 1
Output power = 6000 * 200
NOw do it.

 

[awesomaholic101]

Input power = 500 * 9.81 * 300 / 1
Output power = 6000 * 200
NOw do it.

lol lazy to type the rest?

Therefore, efficiency = [ (1.2*10^6) / (1.4715*10^6) ] * 100 = 82%

 

[The Sarcastic Retard]

lol lazy to type the rest?

Therefore, efficiency = [ (1.2*10^6) / (1.4715*10^6) ] * 100 = 82%

That formula is of IGCSE, ofcourse he will be knowing..

 

[Muhammad Saad :)]

Well thanks for the reply.
I am now confused since l did the same except using 10 for gravitational acc as my sir at colg said to use 10 in mcqs so what do we use for gravitatiinal acc 10 or 9.81 in mcqs?

 

[The Sarcastic Retard]

Well thanks for the reply.
I am now confused since l did the same except using 10 for gravitational acc as my sir at colg said to use 10 in mcqs so what do we use for gravitatiinal acc 10 or 9.81 in mcqs?

Always use 9.81.
My teacher once said of using 10 as well..
But then she said 9.81 is to be used.

 

[donewithtime80]

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s10_qp_11.pdf

Q 6 and 7 please

 

[The Sarcastic Retard]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s10_qp_11.pdf

Q 6 and 7 please

 

[donewithtime80]

??

 

[donewithtime80]

??

q 6 please